Continuous-wire-drawing machine.



H. SAVILLE. CONTINUOUS WIRE DRAWING MACHINE.

APPLICATION FILED MAI 13.119 0. V

' Patented NOV. 15, 1910.

2 SHEEN-SHEET 1.

H. SA VILLE. CONTINUOUS WIRE DRAWING MACHINE.

APPLICATION FILED MAY 3, 1910.

Patented NOV. 15, 1910.

2 SHEETS-SHEET 2.

' ject of the King of Great Britain,

ing passed through a series wire due to its reduction in theoreticallylid To all whom it may concern:-

wire is traveling.

AND, ASSIGNOR TO THE BRITI$H.STEEL &

IiPlJhRRY SAVILLE, OF MANCHESTER, ENGL 9F MANCHESTER, ENGLAND.

WIRE COMPANY, LIMITED,

Be it known that vI, Hanna SAviLnn, a subresiding at Wire W orks,.Trafiord Park,-Manchester, in the county ofLancaster, England, haveinvented ccrtainnew and useful Improvements in Continuous Wire DrawingMachine'ry, of which the following is a specification.

This invention rclates to continuous wire drawin machinery wherein thewire to be drawn 1s reduced a number of dies in one continuous drawinprocess.

In drawing wireiy the continuous process it is necessary in practice torevolve each forwarding drum faster than the. preceding one in order toallow for the eldngation of the thickness. The required speed is onlyobtainable ap roxiinately by calculation, as the variation in the sizeof a die-end the during each wire drawing operation makes it necessaryto revolve the forwardin drums at a speed. greater than would deliverthe ascertained amount for elongation. Also when different sizes of wireare to be drawn, and the reductions vary at each die fromwhat wascalculated for some other size or: dies, as certain amount ofslip takesplace between the Wire and the forwarding drums owin to the latter speedin excess of the speed at which the This slipping of the wire around theforwarding drums, removes the coating, scratches the Wire, and destroysthe wire forwardingseats of the drums. view to obviating this objectionit has been proposed to control the speed at which each of theforwarding drums is driven through a mechanical variable speed devicecon trolled by the pull exerted upon the wire by the next succeedingdrum.

According to this invention each drum is driven through one ormore conesand a-fric tion device arranged to be traversed longitudinally withrespect to the cones by vana- 1 tion in the pull exerted upon the wireby the and of being put out next succeeding drum of engagement with. thesaid cones.

In order that the said invention may be .clearly understood and bereadily carried into effect the same will be described more fully withreference to the accompanying drawings, in which Specification ofLetters Patent. Application filed May it, 1910.

Figure l is a plan of a portion of a wire of times by he wear whichtakes place revolving at a peripheral With a CONTINUOUQWIRE-DRA'WINGMACHINE.

Patented Nev. 115, 1910. Serial No. 561,206.

drawingmachine constructed in accordance with this invention. Fig. 2 isa similar view drawn to an enlarged scale. Fig. 3 is a transversesection taken on line 3, 3, of Fig. 2. Fig. 4 is a horizontal section ofthe 'variable speed device drawn to an enlarged scale. Fig. 5 is atransverse section taken on line 5, 5, of Fig. 4, and Fig. 6 is ahorizontal s'ection'of a modified form of the variable speed device. I

A represents the wire drawing drums, B the-wire, and C the dies.

Referring more particularly to Figs. 1 to 5, each ofthc drums Aismounted upon an upright spindle a journa-led in hearings a supported bythe machine frame a at opposite sides of a main driving shaft D thatextends from one end to the other of the machine. Each spindle a carriesa worm wheela thatgemrs with a worm a formed on or rigidly secured to ashort. rotatably mounted shaft o which. is arranged parallel'to the maindriving shaft D from which. the drive is transmitted to each of thedrums A in the manner hereinafter described. Each short shaft a ismountedin pivoted arms a supported from a shaft a. and carries a cone aon which is loosely mounted a frictional driving, band a adapted bymeans of a weight a" or other sultable device to be retained in yieldingfrictional contact with a corresponding cone d mounted inversely uponthe main driving shaft D, the said weight being adjustably mounted uponan arm (1 that is arranged in rigid connection with one of the arms a.The frictional driving band a is capable of being traversed to anyrequired position between the cones a and (Z by means of a hand lever Epivoted at e to the machine frame and constituting a starting andcontrol lever. Connected to this lever is alslidably mounted rod 6 onwhich is pivoted a pair of fingers 6 adapted to engage with the oppositeedges of the i band a. Each hand lever E is arranged to, be mechanicallyoperated in one direction by a weight or other suitable device andcarries a grooved pulley e suitably arranged 5 in rclation'toi drum andto a guide pulley 0 over which the wire passes on its Way to each wiredrawing 1 i die. 0 Each weight 6 is connected to its respective lever Eby a cord or chain indicated by dotted lines in F 1g. 3, said connectionrecesses formed cone on the main driving shaft D. This is effected byforming the large end of each cone a with a portion a of reduceddiameter so that when the frictional driving band a occupies a positionupon such reduced por- -.tion it exerts'no frictional driving power uponthe cone'on the main driv ng shaft.

The same efiect can be obtained by forming the large end of the drivingcone 1.! with a portion d of reduced diameteras shown in Fig.6.

When the apparatus is being used'as a continuous wire drawing machinethe end of the wire B is pointed in the usual way, and asuificientlength is drawn through the first die 0 to enable its end to be securedto the first drum A. The hand lever E relating to such drum is thenoperated to transfer tlie frictional driving band a into frictionalcontact between the driving cone 0: and the driven cone d and so to setthe drum gradually in motion. After several wraps of wire have beenwound onto the drum, the latter is brought to rest by actusting theaforesaid hand lever to return the driving band a to its inoperativeposition, whereupon the end of the wire is released from such drum andis passed over the pulley mounted upon the hand lever The wire is thendrawn through the second die (1 and is secured at its end to the seconddrum A which is set' in motion by actuating its hand lever E to cause anumber of turns of wire to be wound 'upon' the second to' transfer thefrictional driving band a drum. After this operation has been effectedthe wire after being passed around the pulley e appertaining to thelever of the second drum is then conveyed to the third drum and so on,throughout the series to a finishing or storing drum. By thisarrangement the pull exerted upon the wire B by any one drum causes thehand lever ofthe preceding drum to be moved in opposition to its weighta or other device and machine frame.

dividually and may be driven at any predetermined constant speed bysecurin its hand lever in any predetermined position by means of itslocking pin 6. Or any two or more of the said drums may be usedindependently .of the others. It is known that friction cones with aninterposed friction driving band actuated by hand have already beenemployed in connection with wire drawing machines-and that such"appliances constitute a well known form of change speed device. 1

The details of construction can be variously modified without departingfrom the nature of the invention; for example in lieu of the driven coneand the loosely mounted friction band above described with reference toFigs. 1 to 5, a friction wheel a see Fig. 6 may be fixed upon a shaft aarranged parallel with the adjacent side of the driving cone 0! andslidablyimounted in bearings a suitably supported in relation to themachine frame. This shaft is connected with its respective hand lever Ein such a manner that the friction wheel a can be traversed from end toend of the driving cone d or be moved out of contact therewith whenrequired. In order to permit of this endwise movement the worm a isloosely mounted on such shaft and drives the latter by means of aninternal key engaging with a groove a in the shaft, endwise movement ofthe worm being prevented by two of the bearings a. I

hat I claim and desire to secure by Letters Patent of the United Statesis 1. In a continuous wire drawing machine, I

the combination with the dies and drums,- of

a plurality of driving cones, friction devices arranged to be traversedlongitudinally with respect to the cones, and means whereby the pullexerted upon the wire by one drum controls-such traversing of thefriction devices for regulating the speed at which thepreceding drum isdriven.

Q. In a continuous wire drawing machine, the combination with the diesand drums, of a plurality of driving cones, friction devices arranged tobe traversed longitudinally with respect to the cones. leversoperatively connectcd with the friction devices, means whereby saidleversare actuated in one direction by the pull exerted upon the wire,and means for exerting a pull upon the levers in opposition to the pullexerted by the wire.

3. In a continuous wire drawing machine, the combination with the diesand drums, of a plurality of driving cones, friction devices arranged tobe traversed longitudinally with'respect to the cones, leversoperatively connected with the friction devices, a pulley carried byeach lever,. said pulley being adapted to have a loop of wire benttherearound in the passage of the wire from one drum to the nextsucceeding means for exerting a pull upon opposition to the pull exertedby the wire.

4. In a continuous wire drawing machine, the combination with the diesand drums,

drum, and

ranged to make frictional contact with an adjacent cone, a leveroperatively connected with each driving band to traverse the latterlongitudinally with respect to the cones, a pulley carried by each leversaid pulley being adapted to have a loop of wire bent therearonnd in thepassage of the wire from one drum to the next succeeding drum,' andmeans for exerting a pull upon the levers in opposition to the pullexerted by the wire.

5. In a continuous wire drawing machine, the combination with the diesand drums,

of a plurality of driving cones, a plurality of driven cones arrangedadjacent thereto, pivoted arms for carrying the driven cones, frictiondrivin bands encircling the-driven cones, means or compressing thefriction driving bands between the driving and the driven cones, meansfor rotating the drums from the driven cones, and means whereby the pullexerted upon the wire by one drum controls the position of the frictiondevice between the driving and the driven cones for regulating the speedat which the preceding drum is driven.

6. In a continuous wire drawing machine. the combination with thedie-sand drums, of

" a plurality of driving cones, a plurality of j the levers in cones,means for coiiipi'essing the friction driving bands bet-ween the drivingand the driven cones, means for rotating the drums from the drivencones, levers operatively Connected with the friction driving bands, ofa plurality of dr1 ving cones, a friction driving band encircling onecone and ari a pulley carried by each lever, said pulley being adaptedto have a loop of wire bent thercaround in the passage of the wire fromone drum to the nextsucceeding drum and means for exerting a pull uponeach lever in opposition to the pull exerted by the wire. 7. Ln acontinuous wire drawing machine, the combination with the dies and drumsof a plurality of driving cones, a driving shaft on which such cones arefixed at intervals, two driven cones situated at opposite sides of thedriving shaft'adjacent to each driving cone, pivoted arms for carryingthe driven cones, friction driving hands encircling the driven cones,means for compressing the friction driving bands between the driving andthe driven cones, the cones being providedwith means for releasing suchcompression, means for rotating the drums from the driven cones,leversoperatively connect ed with the friction driving bands, a pulley carriedby each lever, said pulley being adapted to have a loop of wire benttherearound in the passage of the wire from one drum to the nextsucceeding drum, and means for exerting a. pull upon each lever inopposition tothe pull exerted by the wire.

driven cones arranged adjacent tl ereto, pivoted arms for carrying thedriven cones,

friction driving bands encircling the driven In testimony whereof Iailix my signature in presence of two witnesses.

HARRY SAVILLE. Witnesses: p y

W. Romivson, N. K. MoNriULL,

